Coupling-pole.



No. 831,888 PATBNTED SEPT. 25, 1906. G. 0. NIBNOW. COUPLING POLE.

APPLIOATIOIB FILED JAN. 3. 1906.

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UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented Sept. 25, 1906.

A li ati fil d January 3, 1906- Serial No. 294,445.

T at whom it may concern.-

Be it known that I, GEORGE C. NIENow, a citizen of the United. States,residing at Plainview, in the county of Wabasha, State of Minnesota,have invented certain new and useful Improvements .in Coupling-Poles andI do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to couplings, and more particularly to that classof couplings which are used to couple an engine and a farm-machine orthe like, and has for its object to provide a simple device of thischaracter which may be readil and quickly operated and which will beefficient in action.

A further object of the invention is to provide a device of thischaracter which may be swung into position to couple an engine and amachine even though the draft members of the same are not in alinement.

In the accompanying drawings, Figure 1 is a top plan view of myinvention, showing the same removed from the en inc and farm-machine.Fig. 2 is a vertica longitudinal sectional view through the same. Fig. 3is a detail perspective view of the bolster and. tongue of thethreshing-machine or the like, and Figs. 4 and 5 are respectively detailviews of the top and bottom tongue-plates.

Referring to the drawings, the numeral 1 denotes the bolster of athreshing-machine or other farm-machine, and 2 the tongue of the same,which has its forward end beveled, as at 3. The bolster 1 is providedwith a series of openings 4, through. which are engaged bolts 5, whichserve to secure to the under side of the said bolster and the tongue alate 6, which is T-shaped. to conform to the s ape of the said bolsterand tongue. The central one of the bolts 5 also serves to secure to thetongue and bolster a tongue-plate 7, which is provided with a downturnedportion 8 to lie against the beveled end 3 of the tongue 2, theremaining portion of the plate 7 being extended forwardly, as at 9, in aplane parallel to the plane occupied by the portion 7 of the said plate.

The draft element of the engine is indicated by the numeral 10, anddisposed against the upper and lower sides of the draft member 10 arethe inner ends of plates 11, each of which is bent at an angle andthence forwardly in parallel relation, as at 12. The last-named portion12 of the plates 11 is held in spaced relation by means of sleeves 13,which are interposed between the said parallel portions of the saidplates and which are engaged. upon rivets or bolts 14, which serve tohold the said plates in fixed relation to each other. A headed pin 15 isengaged through alining openings in the inner ends of the plates 11 andin the draft member 10, whereby the said plates may be jointly swungwith relation to said draft member.

The portions 12 of the plates 11 are sufiiciently spaced for thereception of the outer ends of the plates 6 and 7, and the said portions12 and the said plates are provided with alining openings 16 and 17 forthe reception, res ectively, of a bolt 18 and a pin 19. Slidabl engagedaround the meeting portions of the plates is a collar 20, carrying aneyelet 21, to which is attached one end of a flexible connection 22,attached at its opposite end to the pin 19.

In operation the collar 20 is moved upon the plates 11 in such aposition that 'the forward end portions of the plates 6 and 7 will notstrike the said collar when the lates 11 are swung with relationthereto. T 1e plates 11 may then be swung into proper engagement withthe draft member 10 of the engine and the pin 15 engaged through thesaid plates and the said draft member. As soon as tension is exertedupon the cou ling the parts will assume their proper a inement, and thecollar may be moved to its former position and the pin 19 properlyseated to prevent turning of the members while the device is in use.

What is claimed is 1. The combination with a pair of draft elements, ofplates carried by said. draft elements and pivotally connected to eachother, and acollar slidablyengaged with said plates.

2. The combination with a pair of draft elements, of plates carried byeach of the draft elements, the ends of the plates for one draft elementbeing received between the ends of the other draft element, a pivot-boltengaged through the said' ends of the plates to pivotally connect thesame, and a pin adapted for engagement through the plates.

3. The combination with a pair of draft elements, of plates rigidlyconnected with one of said draft elements, lates pivotally connected tothe other of sai draft elements, the ends of the first-named platesbeing received between the ends of the second-named Plates, and beingpivotally connected, a colar slidably disposed upon the said plates, anda pin engaged through the said plates, the said collar and said pinbeing arranged to hold the said plates in fixed relation with respect toeach other.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE (J. NIENOW. Witnesses:

JAMES A. ()AsLEY, J L. E. KLEIN.

